Exactly. After 4-5 five hours of focus you then mostly just typing on autopilot. After twelve hours behind desk every day, your body starts to seriously hurt w

Exactly. After 4-5 five hours of focus you then mostly just typing on autopilot. After twelve hours behind desk every day, your body starts to seriously hurt which makes concentration even harder. It is not the most productive way to create something, it is usually just about signalling dedication. Same cringe like from so called internet grind culture. You usually do not need to sit behind computer till you smell yourself. It's ludicrous.